Identify which value represents the sample mean and which value represents the claimed population mean

Question

A recent article in a college newspaper stated that college students get an average of 5.5 hrs of sleep each night. A student who was skeptical about this value decided to conduct a survey by randomly sampling 25 students. On average, the sampled students slept 6.25 hours per night

Answer 1

The "sample mean" is the average of the 25 sampled students, which is 6.25 hours.  

 

The "claimed population mean" is the stated average from the newspaper article, which is 5.5 hrs.  Note that there is no sample size associated with the population mean.